So someone suggested this over on xitter for japanese vods, its extremely useful if you want to learn the language as someone is speaking it.
https://www.languagereactor.com/It says mostly for netflix but it works just fine on youtube, that said it needs subtitles to work off, so say you wanna watch those videos on the niji JP website, the various skits and show, that will work, but it wont work with a livestream unless you have a way to force subtitles on it.
